History TimeTravel / LiveActionTV

** ...Until the Steven Moffat era. Moffat's episodes are well-known for incorporating Time Travel or temporal paradoxes as an integral part of their plots, and the season arcs in his years as executive producer have both focused on issues associated with the TimeyWimeyBall.

* In ''Series/SevenDays'', the hero was the only one who could work the device reliably, and he could only go back seven days at a time.

** In fact, ''Series/DoctorWho'' has generally been somewhat shy of actually using Time Travel as part of the ''plot'', rather than merely a way of delivering the characters to the {{Adventure Town}}s of the week.
** Until the Steven Moffat era. Moffat's episodes are well-known for incorporating Time Travel or temporal paradoxes as an integral part of their plots, and the season arcs in his years as executive producer have both focused on issues associated with the TimeyWimeyBall.

*** 1. Travelling through a wormhole that intersects with a solar flare causing the wormhole's course to alter sending the matter in transit back to either the dialing Stargate, the destination Stargate or another Stargate altogether. By the final post-series SG1 film one of the characters manages to build a device that uses satellites to scan across the galaxy's stars in order to figure out when a flare will be able to send the traveller back in time to a specific date.

*** 1. Travelling through a wormhole that intersects with a solar flare causing the wormhole's course to alter sending the matter in transit back to either the dialing Stargate, the destination Stargate or another Stargate altogether.

* The tv show ''Series/{{Alcatraz}}'' features a time warp which causes everyone in Alcatraz in 1963, including its prisoners, to go forwards in time into 2012, and due to the fact these dangerous inmates from the past are loose, they must be recaptured.
* ''Series/{{Blackadder}} Back and Forth'' featured Blackadder and Baldrick traveling through time when Baldrick accidentally made a working time machine. Then they go back to SetRightWhatOnceWentWrong when they change history by accident. [[spoiler: Then they MakeWrongWhatOnceWentRight so Blackadder could become king. For once, it ''worked''. ]]

** Season's 1-3 focus heavily on the psychological toll this takes on the protagonists as they slowly take in the ramifications of only a single trip through time, and how YouCantGoHomeAgain. Season 4 goes OffTheRails when the villains finally figure out how to break these rules.

* ''Series/{{Torchwood}}'', being a ''Series/DoctorWho'' spinoff, has occasionally made use of this.

* In ''Series/QuantumLeap'', highly intelligent protagonist Sam Beckett invents a machine which allows him to travel through time and jumps into it after his program is threatened to be shut down. He finds himself jumping through time, and with interesting rules and constraints.

** Note that this isn't just a PlotTumor (though it is one of those too)- time travel really is getting much easier in-universe as technology advances. By the end of the 24th century, it's shown, Starfleet's temporal function is beginning to overtake its spacial one. This is a large part of why they went to {{Prequel}}s after Voyager. Of course, the PlotTumor in question being TIME TRAVEL, this helped not at all.

* In ''Series/The4400'', people in the future have advanced technology that allows them to pull people out of their place in time an put them in another, they can also give superpowers to them as well.

* ''Series/{{Heroes}}'' has the character Hiro, his time travelling basically set off the whole first series in an attempt to change the future, it's a lot harder than you imagine, apparently. Also in the second series, he travels back in time and creates the character he heard in his bedtime stories. Peter also is prone to time travel but less often.
* ''Series/KamenRiderKabuto'' heavily featured a [[MonsterOfTheWeek Worm]] ability called 'Clock-Up' (reproduced artificially by the Zecters used by the Riders) which allowed the user to [[TimeStandsStill warp the flow of time]] and [[SuperSpeed dramatically increase their speed]]. Later, Tendou gained the ability of Hyper Clock-Up, which allowed him to [[NewPowersAsThePlotDemands turn back time when the plot demanded]], but with the occasional habit of throwing him into nearby sub-dimensions. [[spoiler:Later still, one Worm could actually freeze time, strongly enough to even beat Hyper Clock-Up.]]
* ''Series/KamenRiderDenO'' features a superhero that travels back through time on a passenger train, [=DenLiner=]. Fairly early on, it is established that he is a "singularity point" a person who is completely immune to changes in the time stream and thus especially qualified to battle time-traveling Monsters of the Week. Why the OTHER singularity point handy, [[spoiler: Hana]], doesn't do the job remains unexplained.
** She doesn't do it because [[spoiler: Hana is not part of the timeline, she's from a deleted timeline and is the only reason the characters know time has been changed.]]
* ''Series/{{Lost}}'' from season 3 on, but ''especially'' in season 5. In Lost time travel ''nothing'' can be changed and ''everything'' is one huge StableTimeLoop. Note that the first person who claimed that time ''could'' be changed was [[spoiler:fatally shot by his own mother ''before he was born'']] once he actually ''tried'' to.
* As the titles indicate, ''Series/MiraiSentaiTimeranger'' and ''Series/PowerRangersTimeForce'' feature this; they're about TimePolice squads from the year 3000 who have chased a prisonful of escaped inmates to 2000 (''Timeranger'') / 2001 (''Time Force'').
* ''Series/OdiseaBurbujas'' using Professor Memelovsky’s Time Slide in most of the episodes, as a way to teach children’s history as it was an educational show.
* ''Series/PrehistoricPark'': A group of people (lead by Nigel Marven) set up a safari park filled with prehistoric creatures by traveling to the past and capture the creatures themselves. The time traveling device itself is never discussed in depth but it is what made the whole thing possible.
* ''Series/StarTrekEnterprise'': One of its central premises was a "temporal cold war", in which bandits are going back in time and messing with the timeline. The rules and limitations of time travel are never explained to anyone at any time, so the writers had a license to AssPull.
%%* ''Series/TheTimeTunnel''.
* ''Series/{{Voyagers}}'' - this was the entire premise. The 'Voyagers' were charged to SetRightWhatOnceWentWrong - they used one gadget, the ''Omni'' (which looked rather like a large gold pocketwatch), both to travel and to figure out what was wrong and how to set it right.
* Because it had a [[MythArc myth arc]] planned for its entire run, ''Series/BabylonFive'' was able to show us one half of a StableTimeLoop in Season 1, then the other half in Season 4.
* ''Series/{{Charmed|1998}}'' had a central character who was from The [[BadFuture Horrible Future]].
* ''Series/LoisAndClark'' had a few time travel episodes that included Time Machine author H. G. Wells.
* With the pitted combatants sometimes in different time periods, ''Series/DeadliestWarrior'' obviously uses this in their simulations. However, the most notable case is in Jesse James vs. Al Capone, where Jesse and his men seem to suddenly spawn in a museum during the Depression and proceed to break out the museum pieces rather than being armed from the start like most fights.
* ''Series/{{Lost}}'' hinted mildly at time disparity in season 2, flirted with time travel in season 3, and took the full plunge by the end of season 4.
* ''Series/NickArcade'' had a Time Travel board where the player (Mikey) moves between the past and the future of his own neighborhood.
* ''Franchise/PowerRangers'' occasionally calls on this, even outside the ''Time Force'' season. [[Series/MightyMorphinPowerRangers Mighty Morphin']] had a couple of trips back to the wild west era and the quest for the Zeo Crystals. [[Series/PowerRangersSPD SPD]] team had two separate time travel eps so they and the [[Series/PowerRangersDinoThunder Dino Thunder Rangers]] could each visit the other team's home turf. [[Series/PowerRangersNinjaStorm Cam]] did the KidFromTheFuture thing on his quest to become SixthRanger, and [[Series/PowerRangersLightspeedRescue Carter]] got the chance to repeat a day and save the lives of his teammates.
* In season 2 of ''Series/{{Roswell}}'', Max travels back in time after everyone but he and Liz dies, in order to persuade past-Liz to break up with past-Max and make him get together with Tess. It's very silly and involves mariachis.
* ''Series/StargateSG1'' had several episodes involving time travel--"1969" when they travel back to said year due to Stargate mishaps, GroundhogDayLoop episode "Window of Opportunity", "2010" showing a possible future where everyone is sterilized, "It's Good To Be King" with prophecies from the Ancient time-travelling puddle jumper, season-8 finale "Moebius" involving the same jumper and a twisted TimeLoop (to be expected given the name), and season 10 GrandFinale "Unending".
** In Franchise/StargateVerse there are three methods for time travel:
*** 1. Travelling through a wormhole that intersects with a solar flare causing the wormhole's course to alter sending the matter in transit back to either the dialing Stargate, the destination Stargate or another Stargate altogether.
*** 2. Using a time machine built by the Ancients to either get an area of a galaxy stuck in an ever repeating loop, or a Puddle Jumper with a time machine component that can only jump in jumps of 100+.
*** 3. Although not time travel ''per se'', but, Asgard time dilation fields can be reversed to the time when the field was created.
* ''Series/{{Supernatural}}'' - Sufficiently powerful beings (e.g, angels) are capable of time travel, though it's not used often and changing the past was supposedly impossible until the ScrewDestiny at the end of season five. In season six, Balthazar rewrites history by saving the Titanic; the incarnation of Fate, already ticked at the main characters for putting her out of a job, draws the line at changing the past and coerces Castiel and Balthazar into fixing things. In another episode, The Winchester brothers' grandfather comes forward in time, only to realize he never got back and his son John thought he'd been abandoned. The Winchesters, worried that their grandfather returning would prevent them from being born and stopping The Apocalypse, stop his return.
* ''Series/LovecraftCountry'': In "Rewind 1921" Montrose, Leti and Atticus travel back to Tulsa in 1921, when the Tulsa massacre occurred (which Montrose survived, while most of his loved ones didn't).
* ''Series/CinderellaChef'': One of Ye Jia Yao's customers created a time machine, and she uses it to travel back to ancient times.

* ''Series/WarOfTheWorlds2019'': Season 2 reveals that [[spoiler:the aliens are future humans (genetically divergent enough to qualify as HumanAliens), who have returned to kill past humans and take their organs, since they're dying from mutations]].

* The series ''Series/{{Voyagers}}'' centered around a time traveler and a young boy who travel through time trying to fix things that went wrong in history.

In ''Series/LifeOnMars2006'' and its sequel series, '' Series/AshesToAshes'', [[spoiler: when time travelers travel to the past, they are going to another world. In the series, victims of trauma, such as people in comas or even people who are dead, are transported to limbo, which is set in the year of one’s source of trauma, and allows them to get a chance to lay their demons to rest by confronting past problems, which then allows them to ascend into heaven.]]

* ''Series/{{Supernatural}}'' - Sufficiently powerful beings (e.g, angels) are capable of time travel, though it's not used often and changing the past was supposedly impossible until the ScrewDestiny at the end of season five. In season six, Balthazar rewrites history by saving the Titanic; the incarnation of Fate, already ticked at the main characters for putting her out of a job, draws the line at changing the past and coerces Castiel and Balthazar into fixing things.

%%* ''Series/QuantumLeap''

* In ''Series/Quantum Leap'', highly intelligent protagonist Sam Beckett invents a machine which allows him to travel through time and jumps into it after his program is threatened to be shut down. He finds himself jumping through time, and with interesting rules and constraints.

1: Whenever he jumps through time, his consciousness and memories are actually the only parts of him to time travel, meaning whenever he time travels, he inhabits someone else’s body, who’s mind is then sent into Sam’s body in the future, however, Sam leaves the body he is in after one week into another one and allows the original mind of the body to return to it from the future.

2: He can only travel within his lifetime. Meaning he can only travel between when he was conceived and when he entered his time machine. Since he was conceived in 1953, he can’t travel back further than that year. [[spoiler: However, later in the series, Sam’s friend Al transfers his genetic code to Sam, allowing him to travel further back than 1953, his new limit being 1932.]]

3: His leaps through time aren’t controlled by him. His trips are controlled by a “higher power” so to speak, and the bodies he inhabits aren’t randomly chosen to host his mind, but actually require help with their personal life.

* The tv show ''Series/Alcatraz'' features a time warp which causes everyone in Alcatraz in 1963, including its prisoners, to go forwards in time into 2012, and due to the fact these dangerous inmates from the past are loose, they must be recaptured.

* In season 2 of ''{{Roswell}}'', Max travels back in time after everyone but he and Liz dies, in order to persuade past-Liz to break up with past-Max and make him get together with Tess. It's very silly and involves mariachis.

In ''Series/LifeOnMars2006'' and its sequel series, '' Series/AshesToAshes'', [[spoiler: when time travelers travel to the past, they are going to another world In the series, victims of trauma, such as people in comas or even people who are dead, are transported to limbo, which is shaped to resemble the their past, and allows them to get a chance to lay their demons to rest by confronting past problems, which then allows them to ascend into heaven.]]

* ''Series/{{Sliders}}'' had an interesting variation: The title characters cannot actually travel through time, as their portals always lead them to a parallel Earth during the current year. However, one such world is a place where events play out exactly the same as they did on the Sliders' earth, but at a much slower rate, so when the Sliders' arrive, it seems to them be more than ten years earlier.

In ''Series/LifeOnMars2006'' and its sequel series, '' Series/AshesToAshes'', [[spoiler: when time travelers travel to the past, they are going to a mirror version of our world. In the series, victims of trauma, such as people in comas or even people who are dead, are transported to limbo, which is shaped to resemble the their past, and allows them to get a chance to lay their demons to rest by confronting past problems, which then allows them to ascend into heaven.]]

1: Whenever he jumps through time, his consciousness and memories are actually the only parts of him to time travel, meaning whenever he time travels, he inhabits someone else’s body, who’s mind is then sent into Sam’s body in the future.

* In ''Series/TerraNova'', people are able to go back in time through an accidentally created hole in space-time. However, travel to a different time takes one to a different time stream (a.k.a another universe), allowing them to travel without messing up history. * In ''Series/The4400'', people in the future have advanced technology that allows them to pull people out of their place in time an put them in another, they can also give superpowers to them as well.

* In ''Series/TerraNova'', people are able to go back in time through an accidentally created hole in space-time. However, travel to a different time takes one to a different time stream (a.k.a another universe), allowing them to travel without messing up history.

* In ''Series/The4400'', people in the future have advanced technology that allows them to pull people out of their place in time an put them in another, they can also give superpowers to them as well.